Global Patent Index - EP 0638943 A1

EP 0638943 A1 19950215 - Magnetoresistance effect material, process for producing the same, and magnetoresistive element.

Title (en)

Magnetoresistance effect material, process for producing the same, and magnetoresistive element.

Title (de)

Magnetoresistives Material, Verfahren zu seiner Herstellung und magnetoresistives Element.

Title (fr)

Matériau à effet magnétorésistif, procédé de sa fabrication et élément magnétorésistif.

Publication

EP 0638943 A1 19950215 (EN)

Application

EP 94111791 A 19940728

Priority

JP 19237293 A 19930803

Abstract (en)

A bulk magnetoresistance effect material of a composition represented by the general formula: T100-AMA (wherein T is at least one element selected between Cu and Au; M is at least one element selected from the group consisting of Co, Fe, and Ni; and A is in the range: 1 </= A </= 50 by atomic percent) is prepared by casting a molten mixture of the above composition, and subjecting the resulting casting to homogenization and further to heat treatment. The bulk magnetoresistance effect material is high in the rate of change in the electrical resistance thereof, i.e., shows a large magnetoresistive effect and can be obtained in such bulk form in arbitrary shapes adaptable for various uses. Using the material, various types of magnetoresistive elements are obtained.

IPC 1-7

H01L 43/10

IPC 8 full level

C22C 9/06 (2006.01); H01F 1/00 (2006.01); H01F 1/12 (2006.01); H01L 43/08 (2006.01); H01L 43/10 (2006.01); H01L 43/12 (2006.01)

CPC (source: EP US)

B82Y 25/00 (2013.01 - EP US); H01F 1/15333 (2013.01 - EP US); H10N 50/85 (2023.02 - EP US)

Citation (search report)

  • [X] HOSSAIN S ET AL: "Giant magnetoresistance in single layer and multilayer phase separating alloy films", MAGNETIC ULTRATHIN FILMS. MULTILAYERS AND SURFACES, INTERFACES AND CHARACTERIZATION SYMPOSIUM, SAN FRANCISCO, CA, USA, 12-16 APRIL 1993, 1993, PHILADELPHIA, PA, USA, MATER. RES. SOC, USA, PAGE(S) 419 - 424
  • [X] MIYAZAKI T ET AL: "Effect of alloy additions on magnetoresistance in Ni-Fe-Co alloy films and thermal stability", IEEE TRANSLATION JOURNAL ON MAGNETICS IN JAPAN, NOV. 1991, USA, VOL. 6, ISSN 0882-4959

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0638943 A1 19950215; EP 0638943 B1 19981007; DE 69413768 D1 19981112; DE 69413768 T2 19990506; JP 2807398 B2 19981008; JP H0786017 A 19950331; US 5837068 A 19981117

DOCDB simple family (application)

EP 94111791 A 19940728; DE 69413768 T 19940728; JP 19237293 A 19930803; US 77892097 A 19970106